20487216

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{6997}}^1$

素因数の和:7069

約数の個数: 40

約数和(自身を含む): 53800624

約数和(自身を除く): 33313408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 122, 183, 244, 366, 488, 732, 976, 1464, 2928, 6997, 13994, 20991, 27988, 41982, 55976, 83964, 111952, 167928, 335856, 426817, 853634, 1280451, 1707268, 2560902, 3414536, 5121804, 6829072, 10243608, 20487216]

約数ペア:

[(1, 20487216), (2, 10243608), (3, 6829072), (4, 5121804), (6, 3414536), (8, 2560902), (12, 1707268), (16, 1280451), (24, 853634), (48, 426817), (61, 335856), (122, 167928), (183, 111952), (244, 83964), (366, 55976), (488, 41982), (732, 27988), (976, 20991), (1464, 13994), (2928, 6997)]